Activities/Turtle Art/Programmable Brick: Difference between revisions
| Line 38: | Line 38: | ||
[[Image:TA-dotted-line.png]] | [[Image:TA-dotted-line.png]] | ||
<pre> | |||
def myblock(tw, line_length): | |||
''' Draw a dotted line of length line_length. ''' | ''' Draw a dotted line of length line_length. ''' | ||
try: # make sure line_length is a number | try: # make sure line_length is a number | ||
| Line 58: | Line 59: | ||
tw.canvas.forward(line_length) | tw.canvas.forward(line_length) | ||
return | return | ||
</pre> | |||
You can pass a list of up to three arguments to tamyblock.py as in the example below that converts the input to an rgb value. | You can pass a list of up to three arguments to tamyblock.py as in the example below that converts the input to an rgb value. | ||
[[Image:TA-rgb.png]] | [[Image:TA-rgb.png]] | ||
<pre> | |||
def myblock(tw, rgb_array): | |||
''' Set rgb color from values ''' | ''' Set rgb color from values ''' | ||
tw.canvas.fgrgb = [(int(rgb_array[0]) % 256), | tw.canvas.fgrgb = [(int(rgb_array[0]) % 256), | ||
(int(rgb_array[1]) % 256), | (int(rgb_array[1]) % 256), | ||
(int(rgb_array[2]) % 256)] | (int(rgb_array[2]) % 256)] | ||
</pre> | |||
def myblock(tw, x): | def myblock(tw, x): | ||